Cinematographic apparatus



Oct. 31, 1933.

Original Filed March '10, 1922 H. G. PONTING Er AL CINEMATOGRAPHI GAPPARATUS 3 Sheets-Sheet l IN VEN TOR. MCR/5 fl? T G Po/y 77N Q GEORGE Wf-offa BY MMM K @CL 31, 1933- H. G. PoNTlNG r-:r-AL

CINEMATOGRAPHIC APPARATUS Original Filed March lO. 1922 3 Sheets-Sheet 2WWW GEORGE M ,Co/70 RNEYS.

Odi. 3l, 1933. H G. PONTlNG ET ,M 1,932,421

I CINEMATOGRAPHIC APPARATUS Original Filed March 10. 1922 3 Sheets-Sheet3 INVENTOR. EPEE/f7' PONT/N6 BY MKM A T`TORNEYS.

Patented Oct. 31, 1933 UNITED STAT-Es cINEMA'roGnAPnIc APPARATUS HerbertGeorge Ponting and George William Ford, London, England, assignors, bymesne assignments, to Kinatome Patents Corporation original applicationMarch 1o, 1922, serial No. 542,898, and in Great Britain March 30, 1921.

Divided and this application Serial No. 440,389

March 31, 1930.

24 Claims. (Cl. 88-17) This invention relates to film handling orcinematographic apparatus and in particular to such apparatus whenconstructed in portable form such as is suitable for domestic, ascontrasted with public,. cinematographic displays, or for the taking ofcinematographic photographs.

The present invention provides cinematographic apparatus--that isprojector or camera mechanism, driving connections between the motor andmechanism likewise being such as to preclude the transmission ofvibration. The interlocked means. controlling the actuation of themotor, feeding'means, rewinding means, projection and pilot lights, andthe gate, and the stripping, guiding and protecting members thereof,

are likewise so constructed or arranged as to minimize or prevent thetransmission of noise and other vibration and to `reduce vshock and jar.

By reason of such construction, it will be evident that noise or othervibration will not be transmitted from the film handling mechanism tothe outside of the casing or from the outside of the casing to the filmhandling mechanism therewithin, and that noise or other vibration willnot be transmitted between the driving motor and the moving parts incontact with the film or the film itself. Such elimination of noise andother vibration is of obvious and great advantage in either a projectingor a taking apparatus, designed either for ordinary cinematographicpictures or for images representing sound. Such construction alsoeliminates one chief cause of unsteady projection or photographybyinsulating the projecting or taking aperture of the gate against`vibration from the motor as well as' from the outer casing.

The source for the light which is passed through the film, its reectorand the condensing and objective lenses preferably aremounted integrallywith the support for the-apertured gate, such support being suspendedbya vibration-damping construction from the interior ofL the casing. Thusrelative movement between the optical train, or any part thereof, andthe aperture, or between any two parts 'of the optical train, isprevented, and the transmission of vibration between the partscomprising the optical train and the aperture, or any of the same, andthe casing or the motor is impeded or prevented. Also, in the preferredconstruction which is shown herein by way of illustration, the filmsupporting spindles and the film feeding mechanism are likewise mountedupon such insulated plate. The advantages of such constructionr'arrangement are obvious.

The foregoing and other features, objects and advantages of theinvention will be more clearly understood from the following detaileddescription with reference totheaccompanying drawings. which illustrateone preferred construction of cinematographic apparatus according tothis invention.

Figure 1 is a part-sectional sideelevation of the apparatus; A

Figure 2 is a part-sectional end elevation of the apparatus shown inFigure 1 looking towards the front of the machine;'

Figure 3 is a part-sectional plan of the apparatus.

Like reference numerals indicate like parts throughout the drawings.

The main frame of the machine comprises two main plates 5 and 6 whereofone 5, herein termed the fixed plate is carried by pillars 7 secured toone wall of an enclosing cabinet 8 and the other of which, herein termedthe sliding plate is slidably mounted upon the first. Between the feet 9of the said pillars 7 and the wall 8 of the. cabinet, rubber washers 10are inserted for the sake of reducing noise and the feet are clampedupon these washers by screws 11 passing through other rubber Washers 12and clearing the holes in the feet. As is clearly shown in Figure 2, ametallic washer may be introduced between the heads of the screws 11 andthe bushings 12, or the flanged heads of the screws 11 may hold theelements in place. It will be understood that such pillars 7 and feet 9form supporting members or lugs by means of which, together with thescrews ll'and insulating elements l0 and 12, the entire film handlingmechanism is suspended from-the wall of the cabinet. It will be readilyunderstood that in place of rubber, any preferred sound dampingmaterial, or material which vibrates at a suitable rate, may beemployed. That is, the molecular tension of the material forming thecase and that forming the support and the elements carried thereby beingrelatively high, the molecular tension of the intermediate materialshould be relatively low in order to impede or prevent the passage ofvibration.

The sliding plate 6 carries the rear portion 13 of the gate togetherwith the two spindles 15 and 16 for the nlm spools 17 and 18, theprojection lamp 19, the condenser 20, and a reflector 21, situated tothe rear of the lamp. The rear portion 13 of the gate has three of itsedges curved. The front half 14 of the gate "`projects from the fixedplate 5. The usual projection apertures 22 are provided. The dispositionof the parts is therefore such that sliding movement of the one plateupon the other causes the gate to be opened and closed, and when opento-give access to the gate along one edge which will hereinafter becalled the mouth of the gate.

'I'he film-sprocket 23 is carried on the xed plate 5 just beyond thedelivery end of the gate, and a film guiding and stripping nose piece100 is provided projecting forwardly from the rear portion 13 of thegate and carried thereby so as to pass between the delivery end of thegate and the/film sprocket 23.

The fear portion 13 of the gate is apertured to allow the film-sprocket23 to project through it when the gate is closed, and above and belowthis aperture are mounted guide rollers 25 and 26 for the film which,when the gate is closed, cause the lm to lap around part of the filmsprocket periphery and so be drivingly engaged therewith.

'Ihe gate operating mechanism is in the form of a spindle 27 carried inbearings 28 on the sliding plate 6, one above and the other below thefixed plate 5 which carries the front portion of the gate and the saidgate-opening spindle 27 carries two crank arms 29 which engage recessesin the said flxed plate 5. The bearing blocks 28 have undercut portions77 (see Figure 2) which engage the top and bottom beveled edges of thefixed plate 5 which provide guides on which the plate 6 may slide. Thelowerend of the said spindle is bent to provide an operating handle 31.

The above described gate structure and the control thereof is set out indetail and claimed in our application, Serial Number 392,890 filedSeptember 16, 1929, which upon November 19, 1929, matured as UnitedStates Letters Patent Number 1,736,730, said application being adivision of our above mentioned parent application,

Serial Number 542,898, filed in the United States Patent Oilice March10, 1922.

To the rear of the fixed plate 5, that is to say, on that side which isremote from the gate, is mounted the step-by-step feed mechanism and thedriving mechanism for ,the shutter. The shutter 32 is carried upon aspindle 33 which is carried at its forward end in a ball-bearing 35 andits rear end is received by a hollow centre formed eccentrically on apin 36 that is rotatably mounted in a bracket 37 carried upon the fixedplate. Carried also on the spindle 33 is a spiral cam 34 which engagesthe sprocket or star wheel 79 fast on the nlm-driving sprocket spindle.The cam 34 is so shaped that a step-by-step or intermittent rotation isimparted to the film-driving sprocket as will be readily understood byreference to the drawings.

The two lm spool spindles 15 and 16 project through the sliding plate 6and the take-up spindle 16 is provided with a clutch serving to connectand disconnect it withl a driving sprocket `39 operated by an endlesschain 40 passing over a sprocket 41 loosely mounted on the main drivingspindle 42 and driven through the spring 4l in the manner laterdescribed. The clutch referred to is constituted by a single pin43projecting from the end of the spindle 16 parallel to the axis of'rotation of the latter and serving to engage withV an oppositelydirected pin 44 projecting from the chain sprocket 39.

The paying-out film spool spindle 15 carries at one end a pinion 45which, in the closed position of the gate is entirely free but which,when the gate is opened is brought into engagement with a driving spurwheel .46, carried upon a chain sprocket 47 over which the aforesaidendless chain 40 passes. This latter chain sprocket and spur wheel aremounted on an arm 48 which arm is loosely mounted upon the upper rearpillar 7 and controlled by the spring 48 which is coiled about thepillar .7 with one end fixed to the arm 48 and the other fixed to thepillar and hence capable of a limited movement of rotation about an axparallel to that of the spool spindles.

The objective lens 49 is carried on the fixed plate 5 forward of thegate, being mounted in a bracket 50 that is slidable in said plate underthe control of a lever 51 extending downwardly from the plate towardsthe base of the instrument. y

The whole projector is enclosed within the case or cabinet 8 and nearthe bottom of the cabinet is mounted an electric molor 52 which isattached to the hinged plate 8 by the strap 52 for driving the projectorand, if desired, serving also to ventilate the cabinet. The latterfunction may be provided for by means of a fan 53 on an extension of thearmalure spindle of the motor enclosed in a housing 54 attached to themotor and, movable therewith having an opening at its bottomcommunicating through an opening in the bottom of the cabinet with theouter air. On the armature spindle is a driving pulley 56 connected by abelt 56 with a pulley 57 on the front end of the .shutter spindle 33which drives the spindle 42 through the skew gears 70 and 7l. Thesprocket 41 is yieldingly driven by gear 70 through the spring 41.

vAn operating handle 58 (shown in position in Figure 1) is providedprimarily for rewinding purposes, and is adaped to engage the free endof llle cross spindle 42 carrying the chain sprocket In the base of thecabinet are mounted three switches 59, namely, the motor switch, thelamp switch, and a switch for a small pilot lamp 60 provided inside thecabinet. The operating spindle27 for the gate is connected with thesethree switches by a link 61, so that the operation of opening the gateautomatically breaks the mo'or and projection lamp circuit and closesthe pilot lamp circuit and the closing of the gate reverses theseoperations.

Outside the base of the cabinet a lever 62 is provided connected by ashort spindle 63 to a corresponding lever 64 on the inside, slotted toreceive the tail of the lever 51 above referred to as connected with theobjective lens 49. slotted connection seems to reduce the transmissionof vibration. The pillars 7 carrying the main frame of the machine aresecured to one of the walls 8 of the cabinet as previously described andthis latter is hinged, conveniently about its lower end so that thewhole machine can be swung out from within the cabinet upon itssupporting wall for inspection and adjustment. Conveniently the two filmspool cases are mounted together with a connecting bridge 65 toconstitute a single unit carrying the film so that the film spools arenever taken out of the cases when once mounted therein. Such connectingbridge of the magazine may be Such rigid, in accordance with UnitedStates Letters Patent Number 1,100,591, granted June 16, 1914, toFerdinand Von Madaler, or hinged, in accordance with our patentapplication Serial Number 494,772, filed in the United States PatentOffice August 24, 1921, which application upon December 26,`1922,matured as United States Letters Patent Number 1,440,173, or any otherdesired type of magazine or open reel may be employed. It will beunderstood that the transmission of vibration of any character betweenthe film so enclosed or supported and the motor or between such lm andthe outside of the case is prevented by the above describedconstruction.

t To operate the machine a pair of spool cases with their enclosed iilmare slipped upon the free ends of the spool spindles 15 and 16, the gatehaving been previously opened by means of the operating handle 31. Thisoperation has interrupted the motor circuit and lamp circuit and hasclosed the circuit to the pilot lamp. As the spools are slipped on theirspindles the film passes readily into the gate and proper relation tothe sprocket 23. The gate is then closed and the approach of the rearportion 13 towards the front 14 causes the guide rollers 25 and 26 forthe lm to press the latter closely around the periphery of the sprocket23 as the latter enters and passes through the cooperating aperture inthe rear portion of the gate. At the same time the take-up spool spindle16 is brought into position to be clutched by the chain sprocket 39 fordriving it and the three switches 59 in the base are operated as abovedescribed. The linkage between the gate-operating handle and theswitches is such as to provide the necessary lost motion to enable therequired snap action of the switches, such construction also serving toreduce the transmission of vibration.

Any required adjustment of the objective lens 49 for focusing purposesis carried out by means of the lever 62 in the base of the cabinet, theproportions of the levers being such as to afford a fine adjustment.

When the iilm has been run through, the gate may be opened and themovement of the sliding plate 6 thereby declutches the take-up'spindle16 from its driving sprocket 39 and throws the pinion 45 on thepaying-out spindle 15 into engagement with the spur wheel 46 forrotating it and thus rewinding the lm. Owing to the yielding control ofthe arm v48 carrying the spur wheel 46, engagement with the pinion 45 onthe paying-out spindle is effected Without difficulty or damage.

The rewinding of the film can be effected by the handle 58, or, ifdesired, a subsidiary switch may be provided to close the motor circuitagain after it has been opened automatically by the gateoperating lever.

If ventilation is desired, the fan 53 may serve to expel air from thecabinet through the opening in the base and an inlet for the air may beprovided which is at the rear of the projection lamp 19 through a duct66 communicating' with an opening in the base of the cabinet. If suchconstruction is employed, no light, therefore, will escape eitherthrough the inlet or the outlet for air and the discharge of the inletduct being arranged in close proximity to the lamp ensures sufcientcooling.

As is clearly shown in Figures 1 and 3, the case may be provided with aprojection opening enclosed with glass 67, or other transparent body,for the purpose of still further insulating the mechanism and theoutside of the case. As isy clearly shown in Figure .3, an operatingdoor 68 is likewise provided.

Many Aof the advantages of our invention are stated in or apparent fromthe foregoing portion of this specication or from the subjoined claims.Other advantages include the provision of a construction which precludesthe passage of noise or other unwanted vibration between the film andthe exterior of the case or between the film and the driving motor.

Certain of the elements of our invention,.de scribed herein, are claimedin our parent and divisional applications, to which referencehereinsupport, means for mounting saidsupport within said casing, andvibration damping means associated with said mounting means forpreventing the transmission of noise between said casing and saidsupport.

2. In a lm handling apparatus, an enclosing casing, a supporting plate,lm engaging mechanism positioned upon said plate, and means extendingbetween said plate and said casing for mounting said plate therewithin,said means including al connecting member, material of denitenoise-reducing characteristics, and means for maintaining said member inabutment with said material.

3. In a iilm handling apparatus, in-combination a film-gate constructedin two separate portions a front portion and a rear portion, a fixedsupport for one of said portions, a movable'support for the other saidportion, a casing enclosing said apparatus, pillars on said xed supportattached to said casing, and non-resonant material between said pillarsand. said casing to insulate said pillars therefrom for the purpose ofreducing noise.

4. In a film handling apparatus, in combination a film-gate constructedin t`wo separate por.- tions a front portion and a rear portion, a fixedsupport for one of said portions, a movable support for the other saidportion, Hlm-spools on saidmovable support, a casing enclosing saidapparatus, pillars on said fixed support attached to said casing andnon-resonant material between said pillars and said casing to insulates'aid pillars therefrom for thev purpose of reducing noise.

5. In a film handling apparatus, in combination an enclosing casing, afilm-gate, mechanism for feeding alm therethrough, and means formounting said gateupon said casing therewithin whereby the transmissionof vibration therebetween is'limited, said means including a support towhich said gate is attached, a supporting connection between saidsupport and said casing, and vibration-damping materialpositionedbetween said casing and said support at all points ofconnection therebetween and between said supporting connection and saidsupport, said supporting connection and said .support being so formedand positioned as to be free of direct engagement, whereby saidenclosing"casing,`

said support and said supporting connection are arate support, afilm-engaging member mounted upon said separate support, and means formounting said separate support within said casing for limiting thetransmission of vibration between said casing and said nlm-engagingmember., said means including vibration-damping material positionedbetween said supports, said supports be-y ing so formed and disposedthat they are free of direct contact, a connection between saidsupportsi'or maintaining said supports in enective relation to saidmaterial and to each other, vibration damping material positionedbetween one of said supports and said connection, and said lastpreviously above mentioned support and said connection being so formedand disposed that they are free of direct contact, whereby thetransmission of vibration between said two supports is impeded.

'7. In a film handling apparatus, the combination of an enclosing case,film feeding mechanism operatively mounted in said case, means in saidcase for driving said mechanism, a frame upon which the parts of saidmechanism are mounted, and resilient supporting connections between theframe and the case to prevent transmission of vibration.

8. I n a nlm handling apparatus, in combination, an enclosing casing, afilm support, means for feeding a nlm in relation to said support, amotor for driving said feeding means, said motor being mounted upon saidcasing and said feeding means being nxedly disposed in relation theretoand means for mounting said support within said casing whereby thetransmission of vibration between the nlm upon said support and saidmotor is impeded, said means including a connection between said supportand said casing which includes a section of vibration damping material.

9. In a nlm handling apparatus, two supports, nlm handling mechanismincluding a nlm engaging member, said member being mounted upon one ofsaid supports, a motor for operating said mechanism, said motor beingmounted upon the other of said supports, and means extending from one ofsaid supports to the other whereby one is mounted upon the other, saidmeans in- -cluding a connecting member, material of definitenoise-reducing characteristics, and meansfor maintaining said connectingmember in abutment with said material whereby the transmission of noisebetween said member and said motor is impeded.

10. In a nlm handling apparatus, the combination of an enclosing case,nlm feeding mechanism operatively mounted in said case, means in saidcase for driving said mechanism, a frame upon which the parts of,saidmechanism are mounted, and supporting connections between the frame andthe case to preventtransmission of vibration, said connectionscomprising vibration damping material, the frame and the case being soformed and positioned as to be free of direct contact, and members forholding the frame and case in eil'ective relation to such ma- I terial,said frame, case and each of said holding members being so formed anddisposed that none of said members forms contact with both the frame andthe case or with another4 of said members thereby transmitting vibrationbetween the frame and the case.

11. In a nlm handling apparatus, two supports, nlm handling mechanismincluding 'a nlm engaging member, said member being mounted upon one ofsaid supports, a motor for operating said mechanism, said motor beingmounted upon the other of said supports, and means for mounting one ofsaid supports upon the other whereby the transmission of vibrationtherebetween is limited, said means including vibration damping materialdisposed between said supports, said supports being so formed anddisposed as to be freeof direct contact, a supporting connection forholding said supports in enfective relation to said material and to eachother, vibration damping material positioned between said supportingconnection and one of said supports, and said last previously mentionedsupport and said supporting connection being so formed and disposed thatsaid supporting connection and said last previously mentioned supportare free of engagement, whereby at all points said supports and saidconnection are maintained free of direct vibrationtransmitting contactone with any of the others:

12. In a nlm handling apparatus in combination, an enclosing casing, anlm containing magazine, a structure disposed within said casing uponwhich said magazine may be removably mounted, and nonresonant materialso disposed in relation to said structure and said casing that whilesaid magazine is mounted upon said structure said material is positionedbetween said casing and the nlm within said magazine for the purpose ofreducing the transmission of vibration therebetween.

13. In a nlm handling apparatus, the combination of an enclosing case, afilm supporting member, a support for said member, film feedingmechanism operatively mounted in said case for feeding a nlm supportedby said member in relation thereto, means mounted upon said case fordriving said mechanism, and supporting connections between said supportand the portion of the case upon which said driving means is located toprevent transmission of vibration between said driving means and a nlmmounted upon said nlm support, said connections comprising vibrationdamping material, said support and said case being so formed andpositioned as to be free of direct contact. and members for holding thesupport and case in operative relation to such material, said support,case and each of said holding members being so formed and disposed thatnone of said members forms contact with both the support and the case orwith another of said members thereby transmitting vibration between thesupport and the case.

14. In a nlm handling apparatus, a casingan apertured gate disposedtherewithin, means for feeding a film therethrough, a lens cooperatingwith the nlm at the aperture oi' said gate, a support upon which saidlens is mounted, and means extending between said support and saidcasing for mounting said support upon said casing, said means includingvibration damping material and means to maintain said support inabutment therewith whereby the passage of vibration between said casingand said lens is impeded.

15. In a nlm handling apparatus including an apertured gate and meansfor feeding a film through said gate, an enclosing casing, said casingembodying a support, said apertured gate being disposed within saidcasing, a lens cooperating with the nlm atfthe aperture of said gate, asupport, separate from the support embodied in said casing, upon which'said lens is mounted, and

means extending between said supports for mounting said lens within saidcasing for limiting the transmission of vibration between said` casingand said lens, said means including vibration damping materialpositioned between said supports, said supports being so formed anddisposed that they are free of direct contact, a connection formaintaining said supports in effective relation to said material andeach other, vibration damping material positioned between oneof saidsupports and said connection, and said last previously mentioned supportand said connection being so formed and disposed that they are free ofdirect contact, whereby the transmission of vibration between said twosupports is impeded.

16.- In a film handling apparatus, a casing, an apertured gate disposedtherewithin, means for feeding a film therethrough, a source of lightcooperating with the lm at the aperture of said gate, a support uponwhich said source of light is mounted, and means extending between saidsupport' and said casing for mounting said support upon said casing,said means including a section of vibration damping material whereby thepassage of vibration between said casing and said source of light isimpeded.

17. In a lm handling apparatus, including an apertured gate and meansfor feeding a film through said gate, an enclosing casing, said casingembodying a support, said apertured gate being disposed within saidcasing, a source of light cooperating with the lm at the aperture ofsaid gate, a support separate from thev support embodied in said casing,upon which said source of light is mounted, and means extending betweensaid supports for mounting said source of light within said casing forlimiting the transmissionv of vibration between said casing and saidsource of light, said means including vibration damping materialpositioned between said supports, said supports being so formedfanddisposed that they are free of direct contact, a connection formaintaining said supports in effective relation to said material andeach-other, vibration damping material positioned between one of saidsupports and said connection, and said last previously mentioned supportand said connection being so formed and disposed that they are free ofdirect contact, whereby the transmission of vibration between said twosupports is impeded.

18. In a nlm handling apparatus, in combination lm feeding mechanism, aframe for supporting said mechanism, a casing enclosing said mechanismand said frame, and means for mounting said frame upon said casingwhereby the transmission of vibration between said casing and said frameis impeded, said means including a lug, an opening through said lug, amember, adapted to pass through said opening, for attaching said lug tosaid casing, the dimensions of said opening and into the casing beinggreater than the corresponding dimensions of said member whereby saidmember and said lug are free of direct contact, a shoulder 4upon saidmember,` vibration damping material between said shoulder and one sideof said lug, and vibration damping material between said member and theopposite side of said lug.

19. In a film handling apparatus, in combination lm feeding mechanism, asupport for said mechanism, a casing enclosing saidm'echanism and saidsupport, and means for mounting said support upon said casing wherebythe transmission of vibration between said casing and said support islimited, said means comprising a lug, an opening through said lug, amemberfadapted to pass through said opening and into the casing, forattaching said lug to said casing, the dimensions of said opening beinggreater than the corresponding dimensions of said member whereby saidmember and said lug are free of direct contact, a flange upon saidmember, vibration damping material between said lug and said casing, andvibration damping material between said fiange and said lug.

20. In a filmhandling apparatus, in combination film feeding mechanism,a plate to which said mechanism is fixed, a support, and means formounting said plate whereby the-transmission of vibration between saidsupport and said plate is limited, said means comprising a lug, an

.opening through said lug, a member, adapted to pass through saidopening and into the support, for attaching said lug to said support,the dimensions of said opening being greater than the correspondingdimensions of said member whereby said member and said lug are free ofdirect contact, a flange upon said member, vibration damping materialbetween said lug and said support, and vibration damping materialbetween said flange and said lug.

21. In a film handling apparatus, the combination of a case,film-feeding mechanism opera.- tively mounted in the case, means in saidcase for driving lsaid mechanism, a frame in which the parts of saidmechanism are mounted provided with lugs at one side thereof, andresilient supporting connections between the frame and the case toprevent transmission of vibration, comprising vibration absorbingmaterial positioned upon one side of each of said lugs, vibrationabsorbing material positioned upon the other side of each of said lugs,and metallic. members secured to the case and extending through saidmaterial whereby said lugs are mounted upon said case. said lugs andsaid members being so formed and disposed as to be free of directcontact with each other.

22. A motion picture machine including an enclosing casing with anopening at one side, a supporting frame, means for removably seatingsaid frame upon said casing, said frame comprising plates securedtogether in spaced parallelism, by connections which include vibrationdamping material whereby the transmission of vibration between saidplates is impeded, and having one of said plates extending verticallyabove and below the other of said plates and,.when said frame is seatedupon said casing, having said second mentioned plate disposed in a partof said casing interiorto said opening, a pair of revoluble film spoolsremovably carried by the frame on transverse axes and disposed invertically spaced edgewise relation outwardly thereof, means for feedinga lm in a path to one side of the frame, and gearing carried by saidframe between the plates thereof for driving said feeding means and oneof the film spools.

23. `A motion picture machine including an enclosing casing with anopening at one side, a supporting frame, means for removably seatingsaid frame upon said casing, said frame comprising two plates securedtogether in spaced parallelism by connections which include vibrationdamping material whereby the transmission of vibration between saidplates is impeded-and having one of said plates extending verticallyabove and below the other of said plates and, when said frame -is seatedupon said casing, having said second mentioned plate disposed in a partofv said casing interior to said opening, a pair of revoluble lm spoolsremovably carried by one of said plates on transverse axes projectingaway from the side of said plate relatively distant from said othermentioned plate and said axes being disposed in` vertically spacedparallel relation to each other, means for feeding a. lm between saidspools in a path outwardly o! the frame, and gearing carried by saidframe between the plates thereof for driving said feeding means and atleast one.of the film spools, and a motor carried by the other of saidplates.

24. Film handling apparatus including an enclosing casing with anopening at one side, a supporting frame, means for removably seatingsaid frame upon said casing, said frame comprising two plates securedtogether in spaced parallelism by connections which include lvibrationdamping means whereby the transmission of vibration from one of saidplates to the other is impeded, said frame being so constructed that oneo! said plates, when said frame is seated upon for bodily movementtherewith and, when said frame is seated upon said casing, beingdisposed inwardly of said opening within the enclosure of said casing,and said member being mounted upon the other of said plates for bodilymovement therewith and, when said frame is seated upon said casing,being disposed inwardly of said opening within the enclosure of saidcasing.

HERBERT GEORGE PONTING. f [L 8.] GEORGE WILLIAM FORD. [1.. 8.]

